-From 128524b9db3e4f4245226852bee771bd03db75be Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz>
-Date: Tue, 3 Nov 2015 11:01:42 +0100
-Subject: [PATCH 1/2] USB: qcserial: Add support for Quectel EC20 Mini PCIe
- module
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-It seems like this device has same vendor and product IDs as G2K
-devices, but it has different number of interfaces(4 vs 5) and also
-different interface layout which makes it currently unusable:
-
- usbcore: registered new interface driver qcserial
- usbserial: USB Serial support registered for Qualcomm USB modem
- usb 2-1.2: unknown number of interfaces: 5
-
-lsusb output:
-
- Bus 002 Device 003: ID 05c6:9215 Qualcomm, Inc. Acer Gobi 2000 Wireless
- Device Descriptor:
- bLength 18
- bDescriptorType 1
- bcdUSB 2.00
- bDeviceClass 0 (Defined at Interface level)
- bDeviceSubClass 0
- bDeviceProtocol 0
- bMaxPacketSize0 64
- idVendor 0x05c6 Qualcomm, Inc.
- idProduct 0x9215 Acer Gobi 2000 Wireless Modem
- bcdDevice 2.32
- iManufacturer 1 Quectel
- iProduct 2 Quectel LTE Module
- iSerial 0
- bNumConfigurations 1
- Configuration Descriptor:
- bLength 9
- bDescriptorType 2
- wTotalLength 209
- bNumInterfaces 5
- bConfigurationValue 1
- iConfiguration 0
- bmAttributes 0xa0
- (Bus Powered)
- Remote Wakeup
- MaxPower 500mA
-
-Signed-off-by: Petr Štetiar <ynezz@true.cz>
----
- drivers/usb/serial/qcserial.c | 39 +++++++++++++++++++++++++++++++++++++++
- 1 file changed, 39 insertions(+)
-
---- a/drivers/usb/serial/qcserial.c
-+++ b/drivers/usb/serial/qcserial.c
-@@ -22,6 +22,8 @@
- #define DRIVER_AUTHOR "Qualcomm Inc"
- #define DRIVER_DESC "Qualcomm USB Serial driver"
-
-+#define QUECTEL_EC20_IDPRODUCT 0x9215
-+
- /* standard device layouts supported by this driver */
- enum qcserial_layouts {
- QCSERIAL_G2K = 0, /* Gobi 2000 */
-@@ -169,6 +171,38 @@ static const struct usb_device_id id_tab
- };
- MODULE_DEVICE_TABLE(usb, id_table);
-
-+static int handle_quectel_ec20(struct device *dev, int ifnum)
-+{
-+ int altsetting = 0;
-+
-+ /*
-+ * Quectel EC20 Mini PCIe LTE module layout:
-+ * 0: DM/DIAG (use libqcdm from ModemManager for communication)
-+ * 1: NMEA
-+ * 2: AT-capable modem port
-+ * 3: Modem interface
-+ * 4: NDIS
-+ */
-+ switch (ifnum) {
-+ case 0:
-+ dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n");
-+ break;
-+ case 1:
-+ dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n");
-+ break;
-+ case 2:
-+ case 3:
-+ dev_dbg(dev, "Quectel EC20 Modem port found\n");
-+ break;
-+ case 4:
-+ /* Don't claim the QMI/net interface */
-+ altsetting = -1;
-+ break;
-+ }
-+
-+ return altsetting;
-+}
-+
- static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
- {
- struct usb_host_interface *intf = serial->interface->cur_altsetting;
-@@ -237,6 +271,11 @@ static int qcprobe(struct usb_serial *se
- altsetting = -1;
- break;
- case QCSERIAL_G2K:
-+ if (nintf == 5 && id->idProduct == QUECTEL_EC20_IDPRODUCT) {
-+ altsetting = handle_quectel_ec20(dev, ifnum);
-+ goto done;
-+ }
-+
- /*
- * Gobi 2K+ USB layout:
- * 0: QMI/net
projects / openwrt.git / commitdiff